<template>
  <div class="app-container">
    <!-- 搜索表单 -->
    <el-form :model="queryParams" ref="queryRef" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="品牌名称" prop="name">
        <el-input
            v-model="queryParams.name"
            placeholder="请输入品牌名称"
            clearable
        />
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="Search" @click="handleQuery">搜索</el-button>
        <el-button icon="Refresh" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <!-- 功能按钮栏 -->
    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
            type="primary"
            plain
            icon="Plus" @click="toAddPage">新增</el-button>
      </el-col>

      <el-col :span="1.5">
        <el-button
            type="danger"
            plain
            icon="Delete" @click="handleDelete">批量删除</el-button>
      </el-col>
      <right-toolbar v-model:showSearch="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <!-- 数据展示表格 -->
    <el-table :data="brandList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column label="品牌名称" prop="name" width="200"/>
      <el-table-column label="品牌图标" prop="logo" #default="scope">
        <img :src="scope.row.logo" width="50" />
      </el-table-column>
      <el-table-column prop="createTime" label="创建时间" />
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template #default="scope">
          <el-button link type="primary" icon="Edit" @click="handleUpdate(scope.row)">修改</el-button>
          <el-button link type="primary" icon="Delete" @click="handleDelete(scope.row)">删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <!-- 分页条组件 -->
    <pagination
        v-show="total>0"
        :total="total"
        v-model:page="queryParams.pageNum"
        v-model:limit="queryParams.pageSize"
        @pagination="getList"
    />
    <!--新增或修改分类品牌对话框 -->
    <el-dialog :title="title" v-model="open"  width="500px" append-to-body>
      <el-form ref="brandRef" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="品牌名称" prop="name">
          <el-input v-model="form.name" placeholder="请输入品牌名称" />
        </el-form-item>
        <el-form-item label="品牌图标" prop="logo">
          <el-upload
              class="avatar-uploader"
              :action="imgUpload.url"
              :headers="imgUpload.headers"
              :show-file-list="false"
              :on-success="handleAvatarSuccess"
          >
            <img v-if="form.logo" :src="form.logo" class="avatar" />
            <el-icon v-else class="avatar-uploader-icon"><Plus /></el-icon>
          </el-upload>
        </el-form-item>
      </el-form>
      <template #footer>
        <div class="dialog-footer">
          <el-button type="primary" @click="submitForm">确 定</el-button>
          <el-button @click="cancel">取 消</el-button>
        </div>
      </template>
    </el-dialog>
  </div>
</template>
<script setup name="Brand">
//1 引入定义接口信息js文件
import {listBrand,addBrand,getBrandById,change,remove} from "@/api/product/brand";
import {getToken} from "@/utils/auth.js";
//引入ElMessage组件
import {ElMessageBox} from "element-plus";
//2 定义需要使用数据模型（变量）
const brandList = ref([])
const total = ref(0)
//加载数据时显示的动效控制模型
const loading = ref(true);
//定义隐藏搜索控制模型
const showSearch = ref(true);
//添加时弹窗属性
const open = ref(false)
const title=ref("")

const {proxy} = getCurrentInstance();

//定义分页和条件查询相关参数
const data = reactive({
  queryParams:{
    pageNum: 1,
    pageSize: 10,
    name:null //品牌名称
  },
  form :{}, //接收添加品牌的数据
  imgUpload: {
    // 设置上传的请求头部
    headers: {
      Authorization: "Bearer " + getToken()
    },
    // 图片上传的方法地址:
    url: import.meta.env.VITE_APP_BASE_API + "/file/upload"
  },
  //required: true 不能为空
  //message: "品牌名称不能为空" 不能为空
  //trigger: "blur" 什么时候触发  blur失去焦点
  rules: {
    name: [{ required: true, message: "品牌名称不能为空", trigger: "blur" }],
    logo: [{ required: true, message: "品牌LOGO不能为空", trigger: "blur" }],
  }
})
//reactive == ref
const { queryParams,form,imgUpload,rules } = toRefs(data);

//3 编写方法发送ajax请求得到数据
function getList() {
  console.log(queryParams.value)
  listBrand(queryParams.value)
      .then(response => {  //调用成功 response后端返回数据
        // response.rows赋值给brandList
        brandList.value = response.rows
        total.value = response.total
      })
}

//搜索方法
function handleQuery() {
  getList()
}
//重置
function resetQuery() {
  queryParams.value.pageNum = 1
  queryParams.value.pageSize = 0
  queryParams.value.name = null
  handleQuery();
}

//添加弹框方法
function toAddPage() {
    reset()
    open.value = true
    title.value = "添加品牌"
}
//上传
function handleAvatarSuccess(response,uploadFile) {
  console.log(response)
  console.log(uploadFile)
  form.value.logo = response.data.url
}
//确认按钮

function submitForm() {
  proxy.$refs["brandRef"].validate(valid =>{
    if (valid){
      //判断对象里边是否有id,有id修改,没id添加
      if (form.value.id != null){
        //修改
        change(form.value).then(response=>{
          //关闭弹窗
          open.value = false
          //提示信息
          proxy.$modal.msgSuccess("修改成功")
          //刷新页面
          getList()
        })
      }else {
        //添加
        addBrand(form.value).then(response=>{
          //关闭弹窗
          open.value = false
          //提示信息
          proxy.$modal.msgSuccess("添加成功")
          //刷新页面
          getList()
        })
      }
    }
  })

  }

//取消按钮
function cancel() {
  open.value = false
  reset()
}
// 表单重置
function reset() {
  form.value = {
    id: null,
    name: null,
    logo: null
  };
}
//=======================================
//点击修改
function handleUpdate(row) {
  //row是一行的数据
  // form.value = row
  //调用后端接口得到数据
  getBrandById(row.id).then(response=>{
    form.value = response.data;
    //弹框
    open.value = true;
    title.value = "修改品牌";
  })
}
//=====================================
//删除一条数据
function handleDelete(row) {
  // _ids 需要删除品牌的id
  const _ids = row.id || ids.value;
  ElMessageBox.confirm('是否确认删除分类品牌？', "系统提示", {
    confirmButtonText: '确定',
    cancelButtonText: '取消',
    type: "warning",
  }).then(function() {
    //删除
    remove(_ids);
    //刷新
    getList();
    //提示信息
    ElMessage.success("删除成功");
  })
  }
//==================================
//批量删除
const ids = ref([])
  // 多选框选中的数据
function handleSelectionChange(selection) {
  //selection数组
  //从selection数组中获取所有id值
  ids.value = selection.map(item => item.id)
}

//列表方法，加载页面调用这个方法
getList();
</script>


<style scoped>
.avatar-uploader .avatar {
  width: 178px;
  height: 178px;
  display: block;
}
</style>

<style>
.avatar-uploader .el-upload {
  border: 1px dashed var(--el-border-color);
  border-radius: 6px;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: var(--el-transition-duration-fast);
}

.avatar-uploader .el-upload:hover {
  border-color: var(--el-color-primary);
}

.el-icon.avatar-uploader-icon {
  font-size: 28px;
  color: #8c939d;
  width: 178px;
  height: 178px;
  text-align: center;
}
</style>